[root@192 ~]# nmtui
[root@192 ~]# ip a
inet 192.168.184.128/24 brd 192.168.184.255 scope global dynamic noprefixroute ens160
[root@192 ~]# vi /etc/hostname
[root@192 ~]# getenforce
Enforcing
[root@192 ~]# setenforce 0
[root@192 ~]# getenforce
Permissive
[root@192 ~]# vi /etc/selinux/config
[root@192 ~]# vi /etc/fstab
[root@192 ~]# swapoff -a
[root@192 ~]# free -mh
total used free shared buff/cache available
Mem: 1.7Gi 297Mi 1.2Gi 8.0Mi 217Mi 1.3Gi
Swap: 0B 0B 0B
[root@192 ~]# vi /etc/hosts
For Ip forwarding
cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
EOF
[root@192 ~]# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
[root@192 ~]# rpm --import https://www.elrepo.org/RPM-GPG-KEY-v2-elrepo.org
[root@192 ~]# dnf install https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm
[root@192 ~]# dnf --enablerepo=elrepo-kernel --refresh install kernel-ml
[root@192 ~]# grubby --update-kernel=ALL --args="systemd.unified_cgroup_hierarchy=1"
Then reboot the system
[root@master01 ~]# dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
[root@master01 ~]# dnf install -y yum-utils device-mapper-persistent-data lvm2
[root@master01 ~]# dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
[root@master01 ~]# dnf install -y containerd.io
Problem
Solution due to docker so remove podman
To remove Podman
sudo dnf remove podman
sudo rm -rf /var/lib/containers ~/.local/share/containers
sudo dnf autoremove
podman –version
